1. Supply reduction
(1)licit drug：scheduling and deviation control;
(2)illicit drug：enforcing anti-smuggling activities and wipe out drug production;

2. Demand reduction
(1) to stop new users;
(2) to reduce illicit drug abuse;
(3)to prevent misuse of licit drug;
(4)treatment of drug addict;

3. Harm reduction
(1)to reduce the criminal rate
(2)to reduce spread of infectious diseases
(3)to reduce family and social problems